From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 51C01C33C9E for ; Tue, 7 Jan 2020 21:12:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 235042077B for ; Tue, 7 Jan 2020 21:12:39 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=nvidia.com header.i=@nvidia.com header.b="Nq9cz4aO" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730163AbgAGVMi (ORCPT ); Tue, 7 Jan 2020 16:12:38 -0500 Received: from hqnvemgate24.nvidia.com ([216.228.121.143]:5713 "EHLO hqnvemgate24.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729993AbgAGVMf (ORCPT ); Tue, 7 Jan 2020 16:12:35 -0500 Received: from hqpgpgate101.nvidia.com (Not Verified[216.228.121.13]) by hqnvemgate24.nvidia.com (using TLS: TLSv1.2, DES-CBC3-SHA) id ; Tue, 07 Jan 2020 13:11:46 -0800 Received: from hqmail.nvidia.com ([172.20.161.6]) by hqpgpgate101.nvidia.com (PGP Universal service); Tue, 07 Jan 2020 13:12:34 -0800 X-PGP-Universal: processed; by hqpgpgate101.nvidia.com on Tue, 07 Jan 2020 13:12:34 -0800 Received: from HQMAIL111.nvidia.com (172.20.187.18) by HQMAIL105.nvidia.com (172.20.187.12) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Tue, 7 Jan 2020 21:12:32 +0000 Received: from hqnvemgw03.nvidia.com (10.124.88.68) by HQMAIL111.nvidia.com (172.20.187.18) with Microsoft SMTP Server (TLS) id 15.0.1473.3 via Frontend Transport; Tue, 7 Jan 2020 21:12:32 +0000 Received: from rcampbell-dev.nvidia.com (Not Verified[10.110.48.66]) by hqnvemgw03.nvidia.com with Trustwave SEG (v7,5,8,10121) id ; Tue, 07 Jan 2020 13:12:32 -0800 From: Ralph Campbell To: , CC: Jerome Glisse , John Hubbard , Christoph Hellwig , Jason Gunthorpe , "Bharata B Rao" , Michal Hocko , Andrew Morton , Ralph Campbell Subject: [PATCH 1/3] mm/migrate: remove useless mask of start address Date: Tue, 7 Jan 2020 13:12:06 -0800 Message-ID: <20200107211208.24595-2-rcampbell@nvidia.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200107211208.24595-1-rcampbell@nvidia.com> References: <20200107211208.24595-1-rcampbell@nvidia.com> MIME-Version: 1.0 X-NVConfidentiality: public Content-Transfer-Encoding: quoted-printable Content-Type: text/plain DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1578431506; bh=X07NHQHfINZSy9Ul0OISn+znOiJPanChRLHVsYFl+U8=; h=X-PGP-Universal:From:To:CC:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:MIME-Version:X-NVConfidentiality: Content-Transfer-Encoding:Content-Type; b=Nq9cz4aO8SlJFu4Dhi6OI2sNInBftzuKYW9D0C77YmHu/geUOmbzDsQbWL8aHMI8C 21prDhIirty2yL6j7H18KUn0N2jDChCqAcRAXZqmWWJlloXQ53FpdOhFoJ8oyvzEPz /G/2D4d+cLmXSjFS00xucZcSDJuWmth12V0JErBHKEp7gta2I7b0waKPNV0gjh2QSg vs77sD7XRLZmXGTFZJIYr8EzVfWfTnEKSxkX6fcVmUdLo7khEb7kPbS9M3scinmfAW rLqbNkHRoLt1rC36zsYywxYzo4Q4sxeqCGXpTHX1xaoQcy7/ppoi0jNZdQ3SZ6V/CF IpOLYguY2ZJ1Q== Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Addresses passed to walk_page_range() callback functions are already page aligned and don't need to be masked with PAGE_MASK. Signed-off-by: Ralph Campbell --- mm/migrate.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/mm/migrate.c b/mm/migrate.c index ebe2bf070653..b7f5d9ada429 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -2136,7 +2136,7 @@ static int migrate_vma_collect_hole(unsigned long sta= rt, struct migrate_vma *migrate =3D walk->private; unsigned long addr; =20 - for (addr =3D start & PAGE_MASK; addr < end; addr +=3D PAGE_SIZE) { + for (addr =3D start; addr < end; addr +=3D PAGE_SIZE) { migrate->src[migrate->npages] =3D MIGRATE_PFN_MIGRATE; migrate->dst[migrate->npages] =3D 0; migrate->npages++; @@ -2153,7 +2153,7 @@ static int migrate_vma_collect_skip(unsigned long sta= rt, struct migrate_vma *migrate =3D walk->private; unsigned long addr; =20 - for (addr =3D start & PAGE_MASK; addr < end; addr +=3D PAGE_SIZE) { + for (addr =3D start; addr < end; addr +=3D PAGE_SIZE) { migrate->dst[migrate->npages] =3D 0; migrate->src[migrate->npages++] =3D 0; } --=20 2.20.1